661 Oil Test 32:1 vs 40:1 vs 50:1 ?

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I always have seen in several customers saws that Ive torn down that stihl oil would build up that thick soft carbon instead of the smooth hard carbon
The stihl piston pics show carbon crown build up as well, the better the stihl oil the less build up, the sides of the pistons are the important parts some say.
Thansgst
 
I always have seen in several customers saws that Ive torn down that stihl oil would build up that thick soft carbon instead of the smooth hard carbon
Have you looked at the inside of their spark arrestors ?

i have seen the flakes stuck against the screens
 
Have you looked at the inside of their spark arrestors ?

i have seen the flakes stuck against the screens
Ya its the soft sooty type that plugs things up. I prefer to see the hard thin layer on top of the piston that I believe actually increases compression obviously and I also think the hard thin layer acts as an insulator on the piston crown from heat being absorbed
 
Has anyone else tried the sabre with all the chainsaw brands listed on the bottle before i mix some up ? None of the oils being talked about have chainsaw brands on the bottle .o_O
sabre oil 054.JPG
 
New
That ashless Stihl oil you are referring to was originally formulated to help the four mix engines with deposit issues from what I gather. From the pics of pistons I have seen with ultra I would not be in a hurry to run it in a saw.
Ashless dispersesents can't deal with high temps(above 300 degrees) so ultra and the ryobi stuff will suffer from the same issues that the snowmobile Mfgs suffered through when they reccomended ashless oils.
Again, I challenge you to find one oil that has been tested and certified for both TCW3 and Jaso FC/FD. Hint, you won't find a single one.
Stihl ultra as it pertains to base oil composition is very likely not formulated like a boat oil. Some of the "multi purpose"products you and your buddy are pumping are indeed boat oils and are even certified as such. The Lubegard product hints it's a boat oil, but it isn't certified by anyone, so who knows what it is.
Again, I ask the question, why not just use the correct oil for the application?

bwalker, Today at 8:56 PMReport
#7085Like+ QuoteReply
I don't think your considering it at all, after all the bar is set very low with some TCW-3 oils, I don't know what snowmobiles a decade or more ago has got to do with today's newer generation composition oils that have been fully tested for their purpose, but I'm sure we can put it in the round file along with some of your other gems, I can't speak for anybody else but I'm not that hung up on certification like your are, especially theses days when "meets or exceeds" is the norm. The royal purple multipurpose oil mentioned isn't a TCW-3 certified but can be used where it is specified, so it can be used as a boat oil but seeing your hung up on certification & boat oils it isn't technically one, which is why I raised the question about those other oils.
So are the Stihl ultra HP oil 500 hr piston test pics & report run at 50:1 not a true indication of how clean & good the oil performs then ? What evidence do you have that proves it false?
What snowmobile oils a decade ago has to do with it, is the fact the oems tried to use ashless, tcw3 type chemistry which is still in use today and failed miserably. The royal purple product you mention is in fact formulated as a tcw3 type boat oil. Meet and exceeds is BS and totaly unsubstantiated IMO. One of the products your buddy posted a pic of actually listed every standard under the sun on the bottle but didn't claim to meet any of them! Is this the behavior of reputable companies?
Have you found a dual purpose oil that meets tcw3 and Jaso FC specs yet? You wont, because it's not possible to formulate one and there are plenty of companies wirh products on both the JASO and NMMA certifications list, so you would think at least one would pass both if it were possible.
 
IIRC, the one I posted came from Randy ...................... its been a while, I could be wrong



**EDIT** ........... I am wrong, mdavlee reminded us all that its from Maulhead
 
Planning on milling with 100:1 mix?

Well it says on the bottle I can...........:confused:
It says tested up to 100 to 1 ,in a string trimmer am sure would be fine ,in my saw will be 32 to 1 milling ,i will test 40 to 1 also see if good enough and runs any different . i had a malfunction at 50 to 1 once in a high compression saw ,will not use that ratio in a hopped up one anymore .Stock i would not worry about 50 to 1 though .I have steered away from this brand for years because of the 100 to 1 bs ,a few timber fallers have been running it 50 to 1 around here i talked to ,and like it better than the stihl ultra .
 
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